Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8f6ca521723c285…

MALICIOUS

PDF

43.5 KB Created: 2019-01-06 08:14:36 +03:00 Authoring application: Microsoft Word 8.0 (via Acrobat Distiller 4.0 for Windows)
MD5: 612b230f8a6d3904bc30e4129c611177 SHA-1: 9031d7928a361f376a26cc6cc9fe5d736f909fbd SHA-256: a8f6ca521723c285a702a90e4c6ae87f672d684441d2b161bbd53c80f7e0e860
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file was identified as malicious by an ML classifier and contains a significant number of embedded external links. The heuristic PDF_SEO_LINK_FARM indicates a mass external PDF link farm, with 32 links found. These links point to various PDF files hosted on www.gorillawalker.com. The purpose appears to be SEO manipulation or driving traffic to potentially malicious content hosted on these external links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8859

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://www.gorillawalker.com/revista-j-edici-n-n-79-spanish-edition.pdf
    • http://www.gorillawalker.com/bad-wisdom.pdf
    • http://www.gorillawalker.com/prague-castle-uniosguide-series.pdf
    • http://www.gorillawalker.com/hua-yen-buddhism-the-jewel-net-of-indra-iaswr-series.pdf
    • http://www.gorillawalker.com/a-ranch-to-call-home-love-inspired-rodeo-heroes.pdf
    • http://www.gorillawalker.com/the-pursuit-of-the-millennium-revolutionary-millenarians-and-mystical-anarchists.pdf
    • http://www.gorillawalker.com/physical-audio-signal-processing-for-virtual-musical-instruments-and-digital.pdf
    • http://www.gorillawalker.com/cocoa-cookbook.pdf
    • http://www.gorillawalker.com/fast-facts-for-adult-critical-care.pdf
    • http://www.gorillawalker.com/my-name-is-yoon-ezra-jack-keats-new-illustrator-award.pdf
    • http://www.gorillawalker.com/the-money-lawyers-the-no-holds-barred-world-of-today.pdf
    • http://www.gorillawalker.com/records-of-the-revolutionary-war-containing-the-military-and-financial.pdf
    • http://www.gorillawalker.com/arthur-and-the-lost-kingdoms.pdf
    • http://www.gorillawalker.com/street-walkers-kindle-edition.pdf
    • http://www.gorillawalker.com/the-information-master-jean-baptiste-colbert-s-secret-state-intelligence.pdf
    • http://www.gorillawalker.com/joe-bonamassa-collection.pdf
    • http://www.gorillawalker.com/the-mulligan-concept-of-manual-therapy-textbook-of-techniques-1e.pdf
    • http://www.gorillawalker.com/a-diamond-in-the-desert-behind-the-scenes-in-the.pdf
    • http://www.gorillawalker.com/our-mother-s-recipes-carrying-on-a-jewish-tradition.pdf
    • http://www.gorillawalker.com/islam-in-history-ideas-people-and-events-in-the-middle.pdf
    • http://www.gorillawalker.com/captivating-appeal-ditch-the-insecurity-and-uncertainty-and-become-savvy.pdf
    • http://www.gorillawalker.com/open-here-the-art-of-instructional-design.pdf
    • http://www.gorillawalker.com/making-the-best-of-basics-family-preparedness-handbook.pdf
    • http://www.gorillawalker.com/a-beatles-medley-1963-64-songs-from-liverpool-conductor-score.pdf
    • http://www.gorillawalker.com/baby-be-mine-holiday-brides-series.pdf
    • http://www.gorillawalker.com/jane-austen-and-the-interplay-of-character.pdf
    • http://www.gorillawalker.com/the-chamber-music-of-mozart-great-courses-lecture-transcript-and.pdf
    • http://www.gorillawalker.com/fantasia-appassionata-for-violin-with-piano-accompaniment-sheet-music.pdf
    • http://www.gorillawalker.com/aqui-estoy-y-aqui-me-quedo-testimonio-de-un-gobierno.pdf
    • http://www.gorillawalker.com/fallback-the-dead-survive-volume-2.pdf
    • http://www.gorillawalker.com/rag.pdf
    • http://www.gorillawalker.com/gold-from-the-sand.pdf
    • http://www.gorillawalker.com/eee-101-introduction-to-engineering-design-ira-fulton-school-of.pdf
    • http://www.gorillawalker.com/liver-disease-in-children-an-atlas-of-angiography-and-cholangiography.pdf
    • http://www.gorillawalker.com/ready-to-use-independent-reading-management-kit-grades-4-6.pdf
    • http://www.gorillawalker.com/un-amore-diabolico-the-immortal-game-saga-vol-1-italian.pdf
    • http://www.gorillawalker.com/surrealist-ghostliness.pdf
    • http://www.gorillawalker.com/business-applications-of-neural-networks-the-state-of-the-art.pdf
    • http://www.gorillawalker.com/piel-y-sol-skin-and-sun-60-consejos-con-respuestas.pdf
    • http://www.gorillawalker.com/globalizing-human-rights-private-citizens-the-soviet-union-and-the.pdf
    • http://www.gorillawalker
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://www.aiim.org/pdfa/ns/extension/
    • http://www.aiim.org/pdfa/ns/schema#
    • http://www.aiim.org/pdfa/ns/property#
    • http://www.aiim.org/pdfa/ns/id/

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